搜索结果: 1-4 共查到“农学 economic importance”相关记录4条 . 查询时间(0.078 秒)
Key scale insects (Hemiptera: Coccoidea) of high economic importance in a Mediterranean area: host plants, bio-ecological characteristics, natural enemies and pest management strategies – a review
Planococcus ficus Planococcus citri Saissetia oleae Parlatoria ziziphi grapevine citrus olive Integrated Pest Management Tunisia
2017/4/6
Key scale insects that have long been considered as having high economic importance in Tunisia and for which several research studies and pest management programs have been undertaken include the meal...
Occurrence, development and economic importance of Phratora (= Phyllodecta) vitellinae (L.) (Coleoptera, Chrysomelidae)
: Chrysomelidae Phratora (= Phyllodecta) vitellinae
2015/3/3
The paper summarizes results of the study of the occurrence, development and harmfulness of Phratora
(= Phyllodecta) vitellinae (L.). The majority of studies was carried out in 1998 to 2005 in ripar...
Production, Marketing and Economic Importance of Mnazi and Other Coconut-based Products in Kenya
mnazi Kenya farmers tappers production marketing palm wine
2010/11/15
Study on production and marketing of palm wine (mnazi) and other coconut-based products was
conducted at the coastal region of Kenya between June 2002 and April 2003. Both stratified and areasampling...
Economic importance of parcel structure on Finnish farms
parcel size parcel shape parcel distance self-selection shadow prices
2010/8/16
This study estimates shadow prices for land parcel characteristics in Finland, such as size and distance from the compound, by adding these characteristics to the conditional profit maximisation model...